1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jek_recluse [69]
3 years ago
7

A geneticist grows 15 pea plants for each experiment. Assume that he has carried out an infinite number of experiments and measu

red the mean height of the plants each time. He finds that the population mean of the plant heights is 6.5 feet with a standard deviation of 0.5 feet. In what interval will 95% of the sample means occur?
the options are
a. 6.47 & 6.53 feet
b. 6.37 & 6.63 feet
c. 6.35 & 6.65 feet
d. 6.24 & 6.76 feet
Mathematics
2 answers:
daser333 [38]3 years ago
6 0

With beginner statistics, you have learned about the 68-95-99.7 rule. As the picture shows, the standard deviation shows how the height of the plants would vary from the population mean.


You see as the heights move one standard deviation away from the right and left of the peak, 68% of plants sampled would have the height between 6 to 7 feet.


Now for one more step, to include 95% of samples you would add two standard deviations away. Therefore you would add 1 feet higher and lower to the population mean.


=95% of the samples would have the height between 5.5 feet to 7.5 feet. 


Hope that helped! I love statistics so if you'd like me to go into more detail over the 68-95-99.7 rule


Volgvan3 years ago
6 0

Answer:

D. 6.24 & 6.76

Step-by-step explanation:

The interval for 95% of the sample means is given by,  µ ± \frac{σ}{\sqrt{n} } where µ is the population mean, σ is the standard deviation, and n is the sample size.

You might be interested in
Can someone please help me figure out this problem. just figure out what 1,2, and 3
Aleksandr-060686 [28]
1 is 39. J don’t know about 2 and 3 though:(
4 0
3 years ago
Two water tanks are shown. Tank a is a rectangular prism and tank b is a triangular prism. Tank a is filled with water.
olganol [36]

Answer:

6 meters

Step-by-step explanation:

i see it on the picture and yeah and i did the math

3 0
3 years ago
PLEASE TELL ME THE ANSWER TO PERCENTS BRAINPOP
coldgirl [10]
I wish I could tell you, I’m stuck on it too
5 0
2 years ago
Read 2 more answers
How long does it take to travel 300 mi at a constant speed of 15 mi/h?
Luba_88 [7]
It would take 20 hours

300/15= 20


8 0
3 years ago
Read 2 more answers
Each state imposes its own excise tax on gasoline. Suppose, for example, that the state of Massachusetts imposes a state gasolin
vovangra [49]

Complete question :

Each state imposes its own excise tax on gasoline. Suppose, for example, that the state of Massachusetts imposes a state gasoline tax of $0.26 per gallon. Suppose further that an average of 1,022,000 gallons of gasoline per day were sold in Massachusetts in 2010. The average revenue from gasoline tax in 2010 is approximately?

Answer:

$265,720

Step-by-step explanation:

Given that:

State gasoline tax = $0.26 per gallon

Average number of gasoline sold per day = 1,022,000 gallons

. From the availabke information given :

Revenue generated = gasoline tax per gallon multiplied by the average number of gallons sold

= $0.26 * 1,022,000

= $265,720

3 0
3 years ago
Other questions:
  • Is this your main idea? Meaning
    14·1 answer
  • Joe drove 141 miles in 3 hours. His cousin Amy drove 102 miles
    5·1 answer
  • Val walks 2 3/5 miles each day. Bill runs 10 miles once every 4 days.in 4 days,who covers the greater distance?
    14·1 answer
  • PLEASE HURRY
    6·1 answer
  • 64 ones, 67 twos, 73 threes, 59 fours, 72 fives, and 71 sixes. What is the experimental probability of rolling an even number
    7·1 answer
  • HELP ME PLS IT IS TIMED
    14·1 answer
  • Addison receives $575 weekly gross pay. What can she expect to receive annually (for the year), if she works the same hours ever
    15·1 answer
  • Write the slope-intercept form of the equation of the line (y=Mx+b) through the given point:
    12·1 answer
  • Which value is closest to b in centimeters?
    14·1 answer
  • Last one i swear its for a great cause
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!